Spiral Center Drill Bits for High-Speed Steel Countersinking Tasks

Key Features:

1. Unique Structure: It has the overall spiral form of a twist drill, but its tip is ground into a standard 60-degree center hole profile (with a 120-degree countersink). This design gives it both the excellent chip evacuation and heat dissipation of a twist drill and the ability to produce standardized center holes.

2. Efficient Chip Evacuation: The helical flute design effectively removes chips from the hole, preventing chip clogging and scoring of the finished hole wall. This makes it particularly suitable for automated and high-speed machining centers.

3. High Rigidity: Compared to traditional combined center drills (solid type), the spiral body structure of the spiral center drill provides greater rigidity, reducing vibration and runout during machining, thereby improving hole quality and tool life.

4. High Machining Efficiency: Excellent chip evacuation and heat dissipation allow for the use of higher cutting parameters, increasing processing efficiency.

Applications:
Mainly used for machining center holes on the ends of shaft and sleeve components that require high-precision positioning. It is a key preparatory tool in precision machining, automotive parts manufacturing, aerospace, and other fields.

Advantages:

• Produces center holes with high precision and superior surface finish.

• Excellent chip evacuation, suitable for deep holes or continuous machining.

• High rigidity and long service life.

• Improves machining efficiency and safety in automated production.